September 2027 Moon Phase Calendar

Updated · Daily moon data sampled at 8:00 p.m. Eastern Time (UTC shown where relevant)

The daily phase and illumination below are sampled at 8:00 p.m. Eastern Time. Principal phases are exact astronomical instants. Moonrise is for New York City and may occur on a different local date elsewhere.

September 2027 Moon Phase Calendar — Gregorian

Gregorian dates: September 1, 2027 – September 30, 2027.

Switching keeps the reference date, September 1, 2027. Weekday headings follow the Gregorian calendar. 13-month dates appear below each day. The detail tables below keep their stated Gregorian date ranges.

Moon phases for September 2027, Eastern Time. 13 month calendar date shown in the center of each day.
SundayMondayTuesdayWednesdayThursdayFridaySaturday
New Moon, 2.4% illuminated2.4%Aug 20 Waxing Crescent, 7.4% illuminated7.4%Aug 21 Waxing Crescent, 14.4% illuminated14.4%Aug 22 Waxing Crescent, 23% illuminated23%Aug 23
Waxing Crescent, 32.5% illuminated32.5%Aug 24 First Quarter, 42.4% illuminated42.4%Aug 25 First Quarter, 52.4% illuminated52.4%Aug 26 First Quarter 2:31 p.m. EDT First Quarter, 62% illuminated62%Aug 27 Waxing Gibbous, 71% illuminated71%Aug 28 Waxing Gibbous, 79.2% illuminated79.2%Sep 1 Waxing Gibbous, 86.3% illuminated86.3%Sep 2
Waxing Gibbous, 92.1% illuminated92.1%Sep 3 Full Moon, 96.4% illuminated96.4%Sep 4 Full Moon, 99.1% illuminated99.1%Sep 5 Full Moon, 99.9% illuminated99.9%Sep 6 Full Moon 7:03 p.m. EDT Full Moon, 98.8% illuminated98.8%Sep 7 Waning Gibbous, 95.8% illuminated95.8%Sep 8 Waning Gibbous, 90.8% illuminated90.8%Sep 9
Waning Gibbous, 83.9% illuminated83.9%Sep 10 Waning Gibbous, 75.5% illuminated75.5%Sep 11 Last Quarter, 65.7% illuminated65.7%Sep 12 Last Quarter, 54.9% illuminated54.9%Sep 13 Last Quarter, 43.7% illuminated43.7%Sep 14 Last Quarter 6:20 a.m. EDT Last Quarter, 32.6% illuminated32.6%Sep 15 Waning Crescent, 22.2% illuminated22.2%Sep 16
Waning Crescent, 13.2% illuminated13.2%Sep 17 Waning Crescent, 6.3% illuminated6.3%Sep 18 New Moon, 1.8% illuminated1.8%Sep 19 New Moon, 0.2% illuminated0.2%Sep 20 New Moon 10:35 p.m. EDT New Moon, 1.3% illuminated1.3%Sep 21

Daily phase names group the cycle into eight broad phase sectors, using progress between exact astronomical events. They describe the 8 p.m. Eastern sample, not the instant of a new moon, quarter moon, or full moon. The tables list those exact principal-phase instants separately.

September 2027 Moon Phases — Exact Times

Principal lunar phases in September 2027, with Eastern and UTC civil dates
PhaseDateTime (ET)Time (UTC)13 month date
First Quarter2:31 p.m. EDT
6:31 p.m. UTC		August 26, 2027
Full Moon7:03 p.m. EDT
11:03 p.m. UTC		September 6, 2027
Last Quarter6:20 a.m. EDT
10:20 a.m. UTC		September 14, 2027
New Moon10:35 p.m. EDT
2:35 a.m. UTC		September 20, 2027

Daily Moon Phase, Illumination, and Moonrise

Daily lunar conditions in September 2027; phase and illumination sampled at 8:00 p.m. Eastern
DatePhase at 8 p.m. ETIlluminationNYC moonrise (ET / UTC)13 month date
New Moon, 2.4% illuminatedNew Moon2.4%, 7:28 a.m. EDT
, 11:28 a.m. UTC		August 20, 2027
Waxing Crescent, 7.4% illuminatedWaxing Crescent7.4%, 8:44 a.m. EDT
, 12:44 p.m. UTC		August 21, 2027
Waxing Crescent, 14.4% illuminatedWaxing Crescent14.4%, 9:58 a.m. EDT
, 1:58 p.m. UTC		August 22, 2027
Waxing Crescent, 23% illuminatedWaxing Crescent23%, 11:10 a.m. EDT
, 3:10 p.m. UTC		August 23, 2027
Waxing Crescent, 32.5% illuminatedWaxing Crescent32.5%, 12:21 p.m. EDT
, 4:21 p.m. UTC		August 24, 2027
First Quarter, 42.4% illuminatedFirst Quarter42.4%, 1:28 p.m. EDT
, 5:28 p.m. UTC		August 25, 2027
First Quarter, 52.4% illuminatedFirst Quarter52.4%, 2:29 p.m. EDT
, 6:29 p.m. UTC		August 26, 2027
First Quarter, 62% illuminatedFirst Quarter62%, 3:23 p.m. EDT
, 7:23 p.m. UTC		August 27, 2027
Waxing Gibbous, 71% illuminatedWaxing Gibbous71%, 4:07 p.m. EDT
, 8:07 p.m. UTC		August 28, 2027
Waxing Gibbous, 79.2% illuminatedWaxing Gibbous79.2%, 4:45 p.m. EDT
, 8:45 p.m. UTC		September 1, 2027
Waxing Gibbous, 86.3% illuminatedWaxing Gibbous86.3%, 5:16 p.m. EDT
, 9:16 p.m. UTC		September 2, 2027
Waxing Gibbous, 92.1% illuminatedWaxing Gibbous92.1%, 5:42 p.m. EDT
, 9:42 p.m. UTC		September 3, 2027
Full Moon, 96.4% illuminatedFull Moon96.4%, 6:05 p.m. EDT
, 10:05 p.m. UTC		September 4, 2027
Full Moon, 99.1% illuminatedFull Moon99.1%, 6:27 p.m. EDT
, 10:27 p.m. UTC		September 5, 2027
Full Moon, 99.9% illuminatedFull Moon99.9%, 6:47 p.m. EDT
, 10:47 p.m. UTC		September 6, 2027
Full Moon, 98.8% illuminatedFull Moon98.8%, 7:09 p.m. EDT
, 11:09 p.m. UTC		September 7, 2027
Waning Gibbous, 95.8% illuminatedWaning Gibbous95.8%, 7:31 p.m. EDT
, 11:31 p.m. UTC		September 8, 2027
Waning Gibbous, 90.8% illuminatedWaning Gibbous90.8%, 7:57 p.m. EDT
, 11:57 p.m. UTC		September 9, 2027
Waning Gibbous, 83.9% illuminatedWaning Gibbous83.9%, 8:28 p.m. EDT
, 12:28 a.m. UTC		September 10, 2027
Waning Gibbous, 75.5% illuminatedWaning Gibbous75.5%, 9:06 p.m. EDT
, 1:06 a.m. UTC		September 11, 2027
Last Quarter, 65.7% illuminatedLast Quarter65.7%, 9:53 p.m. EDT
, 1:53 a.m. UTC		September 12, 2027
Last Quarter, 54.9% illuminatedLast Quarter54.9%, 10:51 p.m. EDT
, 2:51 a.m. UTC		September 13, 2027
Last Quarter, 43.7% illuminatedLast Quarter43.7%, 11:58 p.m. EDT
, 3:58 a.m. UTC		September 14, 2027
Last Quarter, 32.6% illuminatedLast Quarter32.6%No moonrise on this Eastern calendar dateSeptember 15, 2027
Waning Crescent, 22.2% illuminatedWaning Crescent22.2%, 1:12 a.m. EDT
, 5:12 a.m. UTC		September 16, 2027
Waning Crescent, 13.2% illuminatedWaning Crescent13.2%, 2:29 a.m. EDT
, 6:29 a.m. UTC		September 17, 2027
Waning Crescent, 6.3% illuminatedWaning Crescent6.3%, 3:46 a.m. EDT
, 7:46 a.m. UTC		September 18, 2027
New Moon, 1.8% illuminatedNew Moon1.8%, 5:02 a.m. EDT
, 9:02 a.m. UTC		September 19, 2027
New Moon, 0.2% illuminatedNew Moon0.2%, 6:17 a.m. EDT
, 10:17 a.m. UTC		September 20, 2027
New Moon, 1.3% illuminatedNew Moon1.3%, 7:32 a.m. EDT
, 11:32 a.m. UTC		September 21, 2027

“No moonrise” means no rise occurs during that midnight-to-midnight Eastern calendar date at the New York City observer location; it does not mean the moon never rises.